AAI ATC Junior Executive 27 Jul 2022 Shift 1 Paper

To escape, a thief runs towards a gathering at a speed of 6 km/h and a policeman chases the thief at a speed of 10 km/h. The policeman is able to catch him just before he reaches the gathering. What is the distance between the policeman and the thief, if the thief was 1.5 km away from gathering?